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From: Wolfram Sang <wsa@the-dreams.de>
To: Jan Glauber <jglauber@cavium.com>
Cc: linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
	Dmitry Bazhenov <dmitry.bazhenov@auriga.com>
Subject: Re: [PATCH 2/5] i2c: octeon,thunderx: Avoid sending STOP during recovery
Date: Wed, 21 Sep 2016 23:00:44 +0200	[thread overview]
Message-ID: <20160921210044.GE1513@katana> (raw)
In-Reply-To: <9791f6fb5fba70ddf9bd6b92e113e97bc0483317.1474439371.git.jglauber@cavium.com>

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On Wed, Sep 21, 2016 at 08:51:03AM +0200, Jan Glauber wrote:
> From: Dmitry Bazhenov <dmitry.bazhenov@auriga.com>
> 
> Due to a bug in the ThunderX I2C hardware sending STOP during
> a recovery attempt could lock up the hardware. To work around
> this problem do not send STOP at the beginning of the recovery
> but use the override registers to bring the TWSI including
> the high-level controller out of the bad state.
> 
> Signed-off-by: Dmitry Bazhenov <dmitry.bazhenov@auriga.com>
> Signed-off-by: Jan Glauber <jglauber@cavium.com>
> [Changed commit message]

Applied to for-next, thanks!


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  reply	other threads:[~2016-09-21 21:00 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-21  6:51 [PATCH 0/5] i2c: octeon,thunderx: Recovery fixes and improvements Jan Glauber
2016-09-21  6:51 ` [PATCH 1/5] i2c: octeon,thunderx: Fix set SCL recovery function Jan Glauber
2016-09-21 21:00   ` Wolfram Sang
2016-09-21  6:51 ` [PATCH 2/5] i2c: octeon,thunderx: Avoid sending STOP during recovery Jan Glauber
2016-09-21 21:00   ` Wolfram Sang [this message]
2016-09-21  6:51 ` [PATCH 3/5] i2c: octeon,thunderx: Fix high-level controller status check Jan Glauber
2016-09-21 21:01   ` Wolfram Sang
2016-09-21  6:51 ` [PATCH 4/5] i2c: octeon,thunderx: Check bus state before starting a transaction Jan Glauber
2016-09-21 20:55   ` Wolfram Sang
2016-09-22 16:08     ` Jan Glauber
2016-09-22 16:08       ` Jan Glauber
2016-09-21  6:51 ` [PATCH 5/5] i2c: octeon,thunderx: Limit register access retries Jan Glauber
2016-09-21 21:03   ` Wolfram Sang
2016-09-22 16:40     ` Jan Glauber
2016-09-22 16:40       ` Jan Glauber

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